It was developed by [[Gary Kildall]] of [[Digital Research|Digital Research, Inc.]] as a private project from 1974 on, named '''''C'''ontrol '''P'''rogram/'''M'''onitor''. When it became commercial software in November 1977 it was renamed to '''''C'''ontrol '''P'''rogram for '''M'''icrocomputers''.
CP/M had a machine independent part (implemented by Digital Research) and a machine dependent part implemented by the vendor (Amstrad).
'''CP/M''' was shipped with the disk models of the Amstrad CPC and the [[DDI-1]] disc drive on one or two [[System Disk]]s.
For the DDI-1 and CPC664 there was a single disc with CP/M 2.2 on it.
For CPC6128 and later there were two discs with CP/M 2.2 on one disc and CP/M+ on the other.
Vortex also shipped their CP/M with their disc drives which used their memory expansion and Dobbertin shipped CP/M to be used with their hard disk.
[[Graduate Software]] provided a version of CP/M+ on ROM.
Various utilities also patched CP/M to use extended disc formats and to support Amstrad peripherals.
CP/M versions relating to the Amstrad CPC
* [[CP/M 2.2]]
* [[CP/M 3.0]] also called CP/M Plus
[http://www.gaby.de CP/M Archive site maintained by Gaby]
== MicroDOS ==
'''MicroDOS''' (Microcomputer Disc Operating System) is a CP/M clone made in East Germany (GDR) for computers of the brand Kleincomputer (KC). It was available for the [[KC Compact]]. Unfortunately it is not 100% compatible with CP/M.
== Links ==
== * [http://www.gaby.de CP/M on ROM == [[Graduate SoftwareArchive site maintained by Gaby]] offered a service to copy your original CP/M package to a ROM (thus easier access and more disk space).
== Videos ==